#1B6380#1B6380

#1B6380 is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 47.0% C 0.083 H 229.8°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B6380
RGB	rgb(27, 99, 128)
HSL	hsl(197, 65%, 30%)
HSV	hsv(197, 79%, 50%)
CMYK	cmyk(78.9%, 22.7%, 0%, 49.8%)
CIE-LAB	lab(39.09, -11.21, -22.41)
CIE-LCH	lch(39.09, 25.05, 243.42°)
OKLab	oklab(47.01% -0.0533 -0.063)
OKLCH	oklch(47.01% 0.083 229.8)
XYZ	xyz(8.8085, 10.7141, 22.0217)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B6380 #80381B

analogous

#1B806A #1B6380 #1B3080

triadic

#1B6380 #801B63 #63801B

tetradic

#1B6380 #6A1B80 #80381B #30801B

square

#1B6380 #6A1B80 #80381B #30801B

split-complementary

#1B6380 #801B30 #806A1B

monochromatic

#06151B #103C4D #1B6380 #268AB3 #3FABD6

Accessibility & contrast

On white

6.68

#1B6380 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#1B6380 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B6380

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B6380	#FFFFFF	#000000	##FFFFFF
##1B6380	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#546181

Deuteranopia (green-blind)

#475880

Tritanopia (blue-blind)

#006B6D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #1b6380;
/* rgb */ color: rgb(27, 99, 128);
/* oklch */ color: oklch(47.0% 0.083 229.8);

Tailwind

colors: {
  custom: {
    50: '#688fa5',
    500: '#1b6380',
    950: '#000000',
  },
}

SCSS

$custom: #1b6380;
$custom-light: #688fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b6380",
  "rgb": {
    "r": 27,
    "g": 99,
    "b": 128
  },
  "hsl": {
    "h": 197.228,
    "s": 65.161,
    "l": 30.392
  },
  "oklch": {
    "l": 0.47013,
    "c": 0.08252,
    "h": 229.8
  },
  "luminance": 0.10715
}

Semantic roles & 50–950 ramp

primary

#1B6380

secondary

#B46343

accent

#7040E8

background

#F6F8FA

surface

#ECF0F4

border

#C7CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #1B6380

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →